September weather forecastStolwijk, Netherlands

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Stolwijk, Netherlands, with an average temperature varying between 11.8°C (53.2°F) and 19°C (66.2°F).

Temperature

The transition into September subtly indicates a reduction in the average high-temperature, down to an enjoyable 19°C (66.2°F) from August's pleasant 22.3°C (72.1°F). Throughout September, Stolwijk experiences a low-temperature average of 11.8°C (53.2°F).

Humidity

In Stolwijk, the average relative humidity in September is 79%.

Rainfall

In Stolwijk, in September, during 16.5 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Stolwijk, Netherlands, during the entire year, the rain falls for 201.8 days and collects up to 553mm (21.77") of precipitation.

Snowfall

April through October are months without snowfall in Stolwijk.

Daylight

In September, the average length of the day in Stolwijk is 12h and 39min.
On the first day of the month, sunrise is at 06:53 and sunset at 20:27. On the last day of September, in Stolwijk, sunrise is at 07:41 and sunset at 19:20 CEST.

Sunshine

In Stolwijk, the average sunshine in September is 7.4h.

UV index

In Stolwijk, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

The average high-temperature, in September, in Stolwijk, is 19°C (66.2°F), while the average low-temperature is 11.8°C (53.2°F).

In September, the average relative humidity is 79%.

In September, the rain falls for 16.5 days. Throughout September, 44mm (1.73") of precipitation is accumulated.

In Stolwijk, snow does not fall in April through October.

In Stolwijk, the average day length in September is 12h and 39min.

On the first day of September, sunrise is at 06:53 and sunset at 20:27. On the last day of the month, sunrise is at 07:41 and sunset at 19:20 CEST.

In Stolwijk, the average sunshine duration in September is 7.4h.

In Stolwijk, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Stolwijk, Netherlands

  • Average high temperature in September: 19°C

The warmest month (with the highest average high temperature) is July (22.4°C).
The month with the lowest average high temperature is January (5.4°C).

  • Average low temperature in September: 11.8°C

The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).

Average pressure in September
Stolwijk, Netherlands

  • Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).

Average wind speed in September
Stolwijk, Netherlands

  • Average wind speed in September: 12.5km/h

The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (12.2km/h).

Average humidity in September
Stolwijk, Netherlands

  • Average humidity in September: 79%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Stolwijk, Netherlands

  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is August (60mm).
The driest month (with the least rainfall) is April (22mm).

Average rainfall days in September
Stolwijk, Netherlands

  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is February (13.4 days).

Average snowfall in September
Stolwijk, Netherlands

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Stolwijk, Netherlands

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Stolwijk, Netherlands

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in September: 7h and 24min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days in September
Stolwijk, Netherlands

  • Average sunshine days in September: 10.7 days

The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (7.7 days).

Average UV index in September
Stolwijk, Netherlands

  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Stolwijk, Netherlands

  • Average cloud cover in September: 44

The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and August (Cloud cover 40).

Average visibility in September
Stolwijk, Netherlands

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).